When did momondo last update prices for flights from Houston to Islip Long Island Airport?

Prices for flights from Houston to Islip Long Island Airport refresh daily.

How many operators does momondo search for flights from Houston to Islip Long Island Airport?

There is 1 operator available for flights from Houston to Islip Long Island Airport as of February 2026.

How old do you have to be to fly from Houston to Islip Long Island Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$78 Cheap Flights from Houston to Islip in 2026

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Cheap round-trip flights

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9:40 pm - 8:40 am

IAH

ISP

10h 00m

1 stop

11:59 am - 12:24 pm

ISP

IAH

25h 25m

2 stops

$272Multiple Airlines

ter, mar 3 - ter, mar 10

8:18 pm - 7:38 am

IAH

ISP

10h 20m

1 stop

8:33 am - 6:28 pm

ISP

IAH

10h 55m

1 stop

$280Frontier

dom, fev 15 - sex, fev 20

3:45 pm - 9:55 pm

HOU

ISP

5h 10m

1 stop

4:40 pm - 10:25 pm

ISP

HOU

6h 45m

1 stop

$321Southwest

ter, mar 3 - ter, mar 10

3:45 pm - 9:55 pm

HOU

ISP

5h 10m

1 stop

6:10 am - 1:40 pm

ISP

HOU

8h 30m

2 stops

$326Southwest

ter, mar 3 - ter, mar 10

6:40 am - 4:15 pm

HOU

ISP

8h 35m

2 stops

6:10 am - 1:40 pm

ISP

HOU

8h 30m

2 stops

$331Southwest

ter, mar 3 - ter, mar 10

5:45 am - 1:45 pm

HOU

ISP

7h 00m

1 stop

2:55 pm - 10:10 pm

ISP

HOU

8h 15m

2 stops

$350Southwest

qua, jul 1 - qua, jul 15

2:45 pm - 11:30 pm

HOU

ISP

7h 45m

2 stops

6:05 am - 1:55 pm

ISP

HOU

8h 50m

2 stops

$379Southwest

sex, mai 1 - dom, mai 3

2:45 pm - 11:30 pm

HOU

ISP

7h 45m

2 stops

11:50 am - 11:05 pm

ISP

HOU

12h 15m

1 stop

$380Southwest

sex, mai 1 - dom, mai 3

9:03 pm - 9:48 am

IAH

ISP

11h 45m

1 stop

1:22 pm - 8:40 am

ISP

IAH

20h 18m

1 stop

$381Frontier

sex, mar 20 - seg, mar 23

6:59 pm - 6:09 pm

IAH

ISP

22h 10m

2 stops

4:07 pm - 10:41 pm

ISP

IAH

7h 34m

1 stop

$430Multiple Airlines

sex, mai 1 - dom, mai 3

Frontier flights from Houston to Islip, New York

Our best Frontier deals on Houston to Islip, New York flight tickets

Frontier

Feb 15

IAH8:18 pmHouston George Bush Intcntl

10h 20m

1 stop

ISP7:38 amIslip Long Island

Feb 20

ISP8:33 amIslip Long Island

10h 55m

1 stop

IAH6:28 pmHouston George Bush Intcntl

$280

Frontier

Feb 12

IAH8:18 pmHouston George Bush Intcntl

10h 20m

1 stop

ISP7:38 amIslip Long Island

Feb 15

ISP8:01 pmIslip Long Island

11h 59m

1 stop

IAH7:00 amHouston George Bush Intcntl

$435

Frontier

Feb 16

IAH7:45 amHouston George Bush Intcntl

5h 54m

1 stop

ISP2:39 pmIslip Long Island

Feb 20

ISP8:33 amIslip Long Island

10h 55m

1 stop

IAH6:28 pmHouston George Bush Intcntl

$459

Southwest flights from Houston to Islip, New York

Our best Southwest deals on Houston to Islip, New York flight tickets

Southwest

Mar 3

HOU3:45 pmHouston Hobby

5h 10m

1 stop

ISP9:55 pmIslip Long Island

Mar 10

ISP4:40 pmIslip Long Island

6h 45m

1 stop

HOU10:25 pmHouston Hobby

$321

Southwest

Mar 3

HOU3:45 pmHouston Hobby

5h 10m

1 stop

ISP9:55 pmIslip Long Island

Mar 10

ISP6:10 amIslip Long Island

8h 30m

2 stops

HOU1:40 pmHouston Hobby

$326

Southwest

Mar 3

HOU6:40 amHouston Hobby

8h 35m

2 stops

ISP4:15 pmIslip Long Island

Mar 10

ISP6:10 amIslip Long Island

8h 30m

2 stops

HOU1:40 pmHouston Hobby

$331

Fly from

Fly to

Route

Depart

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Price

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

ter 3/3

9:40 pm-8:40 am

1 stop10h 00m

Islip Long Island

ter 3/10

11:59 am-12:24 pm

2 stops25h 25m

$272

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

dom 2/15

8:18 pm-7:38 am

1 stop10h 20m

Islip Long Island

sex 2/20

8:33 am-6:28 pm

1 stop10h 55m

$280

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

ter 3/3

3:45 pm-9:55 pm

1 stop5h 10m

Islip Long Island

ter 3/10

4:40 pm-10:25 pm

1 stop6h 45m

$321

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

ter 3/3

3:45 pm-9:55 pm

1 stop5h 10m

Islip Long Island

ter 3/10

6:10 am-1:40 pm

2 stops8h 30m

$326

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

ter 3/3

6:40 am-4:15 pm

2 stops8h 35m

Islip Long Island

ter 3/10

6:10 am-1:40 pm

2 stops8h 30m

$331

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

qua 7/1

5:45 am-1:45 pm

1 stop7h 00m

Islip Long Island

qua 7/15

2:55 pm-10:10 pm

2 stops8h 15m

$350

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

sex 5/1

2:45 pm-11:30 pm

2 stops7h 45m

Islip Long Island

dom 5/3

6:05 am-1:55 pm

2 stops8h 50m

$379

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

sex 5/1

2:45 pm-11:30 pm

2 stops7h 45m

Islip Long Island

dom 5/3

11:50 am-11:05 pm

1 stop12h 15m

$380

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

sex 3/20

9:03 pm-9:48 am

1 stop11h 45m

Islip Long Island

seg 3/23

1:22 pm-8:40 am

1 stop20h 18m

$381

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

sex 5/1

6:59 pm-6:09 pm

2 stops22h 10m

Islip Long Island

dom 5/3

4:07 pm-10:41 pm

1 stop7h 34m

$430

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Houston to Islip Long Island?

Frontier and Southwest are the most popular carriers operating from Houston to Islip Long Island

What airlines fly to Islip, New York?

Spirit Airlines, United Airlines and Delta are the top three most popular airlines that fly to Islip, New York from Houston according to our data. Spirit Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 7 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

Cheap Houston to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Islip, New York

Fastest flight time	5h 54m
Direct flights	None

The fastest flight from Houston to Islip, New York takes 5h 54m

There are no direct flights from Houston to Islip, New York. There are no popular flight routes from Houston to Islip, New York.

Search flight deals

How far is Houston to Islip Long Island by plane?
Islip Long Island is 1454.8 mi away from Houston. In terms of flight time, this usually takes a little over 5h 54m.
When did momondo last update prices for flights from Houston to Islip Long Island Airport?
Prices for flights from Houston to Islip Long Island Airport refresh daily.
How many operators does momondo search for flights from Houston to Islip Long Island Airport?
There is 1 operator available for flights from Houston to Islip Long Island Airport as of February 2026.
How old do you have to be to fly from Houston to Islip Long Island Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Houston to Islip, New York

Compare and see reviews for airlines that fly from Houston to Islip, New York with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $336	Free Cancellation	Rating 8.0 4,272 reviews		Search Southwest flights

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Islip?

Finding the right flight to Islip from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Islip quick and easy, saving you time and money.

Can I find flights from Houston to Islip with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Islip from Houston with this policy.

How can momondo help me find flights from Houston to Islip?

momondo helps you find the best flight between Houston and Islip by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Houston to Islip right now. Can momondo alert me if prices change?

Price alerts on flights to Islip from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.